Apple vs eBay Interview Questions
Apple lists 300 LeetCode interview questions while eBay lists 62. They share 37 problems — 12% of Apple's bank and 60% of eBay's. Focus on the overlap first, then drill into 263 Apple-only and 25 eBay-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 37 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Apple and eBay.
Step 2 — Company-specific depth: Add Apple-specific problems like Best Time to Buy and Sell Stock, Design Hit Counter, Longest Common Prefix and eBay-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: eBay skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
37 Shared Questions
High-priority problems to practice for both Apple and eBay.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Two Sum | Easy |
| Number of Islands | Medium |
| Merge Intervals | Medium |
| Group Anagrams | Medium |
| Top K Frequent Elements | Medium |
| Course Schedule | Medium |
| Valid Parentheses | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Product of Array Except Self | Medium |
| Kth Largest Element in an Array | Medium |
| Spiral Matrix | Medium |
| Best Time to Buy and Sell Stock II | Medium |
| Merge k Sorted Lists | Hard |
| Time Based Key-Value Store | Medium |
| Find Median from Data Stream | Hard |
| Word Ladder | Hard |
| 3Sum | Medium |
| Maximal Square | Medium |
| Longest Palindromic Substring | Medium |
| Generate Parentheses | Medium |
| Decode String | Medium |
| Interleaving String | Medium |
| Set Matrix Zeroes | Medium |
| Word Search | Medium |
| Rotting Oranges | Medium |
| Sort Colors | Medium |
| Alien Dictionary | Hard |
| Find Peak Element | Medium |
| Valid Palindrome II | Easy |
Showing top 30 of 37 shared problems.
Unique to Apple (263)
Problems in Apple's list that do not appear at eBay.
| Problem | Difficulty |
|---|---|
| Best Time to Buy and Sell Stock | Easy |
| Design Hit Counter | Medium |
| Longest Common Prefix | Easy |
| Rotate Array | Medium |
| Reverse Linked List | Easy |
| Valid Sudoku | Medium |
| Course Schedule II | Medium |
| Valid Palindrome | Easy |
| Rotate Image | Medium |
| Reverse Words in a String | Medium |
| Maximum Subarray | Medium |
| Reverse Integer | Medium |
Unique to eBay (25)
Problems in eBay's list that do not appear at Apple.
| Problem | Difficulty |
|---|---|
| Remove One Element to Make the Array Strictly Increasing | Easy |
| Alternating Digit Sum | Easy |
| Partition Equal Subset Sum | Medium |
| Binary Gap | Easy |
| Minimize Maximum Pair Sum in Array | Medium |
| Minimum Window Subsequence | Hard |
| Design Skiplist | Hard |
| Subtree of Another Tree | Easy |
| Open the Lock | Medium |
| Binary Tree Cameras | Hard |
| Pow(x, n) | Medium |
| Matchsticks to Square | Medium |
Frequently Asked Questions
How many LeetCode questions do Apple and eBay share?
Apple and eBay share 37 LeetCode interview questions. 263 problems appear only in Apple's list and 25 appear only in eBay's list.
What topics overlap most between Apple and eBay?
The most common shared topics between Apple and eBay are Array (17 shared questions), String (12 shared questions), Hash Table (8 shared questions), Sorting (7 shared questions), Matrix (6 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Apple or eBay?
Apple has 76 Easy, 178 Medium, and 46 Hard questions. eBay has 10 Easy, 39 Medium, and 13 Hard questions. eBay has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Apple and eBay?
Start with the 37 shared problems since they cover what both companies ask most often. Then add 20 Apple-specific and 20 eBay-specific questions to round out your prep.